Pregnancy was a death sentence at Auschwitz. But three Jewish women sent there managed to conceal their pregnancies and give birth to some of the Holocaust's youngest survivors, now 80 years old.

Eva Clarke, Hana Berger-Moran, and Mark Olsky are survivors born to survivors. During the Holocaust, their mothers were young Jewish women sent to concentration camps when they were newly pregnant.

Jennifer Simonson is a business journalist with a decade of experience covering entrepreneurship and small business. Drawing on her background as a founder of multiple startups, she writes for Forbes ...